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REVENUE FROM CONTRACTS WITH CUSTOMERS - Revenue From Leases (Details)
$ in Thousands
Mar. 31, 2018
USD ($)
Operating Leases, Future Minimum Payments Receivable [Abstract]  
2018 $ 278,957
2019 37,024
2020 19,103
2021 13,683
2022 9,628
Thereafter 18,836
Total minimum future rentals $ 377,231